http://spectrum.ieee.org/tech-talk/computing/software/motion-capture-technology-goes-into-the-wild-for-dawn-of-the-planet-of-the-apes

http://geidav.wordpress.com/2014/07/18/advanced-octrees-1-preliminaries-insertion-strategies-and-size-complexity/

http://jcgt.org/published/0003/03/01/

http://jonathan-olson.com/tesserace/tests/3d.html

http://kriscg.blogspot.jp/2014/07/lightmapping-in-anomaly-2-mobile.html